An automatic alignment device for a gear reducer

Abstract

This application relates to the field of gear assembly technology, and in particular to an automatic alignment device for a gear reducer. The device includes a frame and a feeding rail, with a feeding gear slidably connected to the feeding rail. The frame also includes a reference mechanism for adjusting the angle of the feeding gear, a locking mechanism for locking the angle of the feeding gear, and a drive mechanism for driving the feeding gear. The reference mechanism includes a reference gear with a fixed angle, which can mesh with the feeding gear. The locking mechanism includes a connector that can be inserted into the inner hole of the feeding gear and a reset component for rotating and resetting the connector. The connector is inserted into the inner hole of the feeding gear when the reference gear and the feeding gear are meshing, and disengages from the inner hole of the feeding gear after the feeding gear passes the reference gear along its running direction. This application enables automated calibration of the feeding gear angle during the feeding process, allowing the feeding gear to enter subsequent processes at a locked angle, reducing the probability of gear collision during subsequent assembly.

Description

Technical Field

[0001] This application relates to the field of gear assembly technology, and in particular to an automatic alignment device for a gear reducer. Background Technology

[0002] Gear reducers are widely used in speed reduction mechanisms of various products due to their advantages such as constant transmission ratio, smooth transmission, and small size. With the increasing automation in various industries, the production of speed reduction mechanisms for various products has also become automated. In the assembly process of gear reducers, gear assembly is required.

[0003] Chinese Patent Publication No. CN116038301A, published on May 2, 2023, discloses an invention entitled "A Gear Set Assembly System for a Gear Reduction Mechanism." This application discloses a gear reduction mechanism assembly system including a gear feeding and pre-meshing mechanism, a gear set material handling and assembly mechanism, a gear reduction mechanism conveying mechanism, and a gear set assembly auxiliary mechanism. The gear feeding and pre-meshing mechanism is used to mesh two individual gears to form a gear set. The gear feeding and pre-meshing mechanism includes a gear feeding mechanism, a gear distributing mechanism, and a gear detection mechanism. The gear feeding mechanism includes a gear feeding vibratory disk and a linear gear feeder located at the output end of the vibratory disk. The gear distributing mechanism includes a reciprocating motion mechanism moving along the y-axis and a gear positioning plate disposed on the reciprocating motion mechanism. The gear positioning plate has a positioning groove for accommodating gears. The reciprocating motion mechanism also has a cylinder connecting plate that moves along the x-axis. A positioning shaft that reciprocates along the z-axis is slidably disposed on the cylinder connecting plate, and the positioning shaft corresponds to the positioning groove.

[0004] In the aforementioned related technologies, the gear feeding mechanism can adjust the feeding gear to a fixed posture and transport it to the gear linear feeder through the vibration of the gear feeding disc. The axis of the feeding gear in the fixed posture is parallel to the z-axis. The gear linear feeder transports the feeding gear into the positioning slot, and then the gear distribution mechanism meshes it to form a gear set. However, the linear feeder uses an electromagnetic vibrator to generate continuous electromagnetic force, causing the material in the trough to vibrate linearly to achieve feeding. That is, the feeding gear moves forward in a state of continuous vibration on the linear feeder. The feeding gear may rotate during the vibration process, causing its angle to change, which may lead to tooth collisions or other issues during the subsequent meshing of the distribution mechanism, affecting the gear assembly quality and efficiency. Summary of the Invention

[0005] To reduce the probability of gear collision during gear assembly, this application provides an automatic alignment device for a gear reducer. After the feeding gear passes through the linear feeder, its angle is adjusted again before entering the distribution mechanism, and the angle of the feeding gear is calibrated again to reduce the probability of gear collision during subsequent meshing due to angle changes.

[0006] This application provides an automatic alignment device for a gear reducer, which adopts the following technical solution:

[0007] An automatic alignment device for a gear reducer includes a frame and a feeding track mounted on the frame. A feeding gear is slidably connected to the feeding track along its running direction. The two ends of the feeding track along the running direction of the feeding gear are respectively connected to a linear feeder and a gear distribution mechanism. The frame is also provided with a reference mechanism for adjusting the angle of the feeding gear, a locking mechanism for locking the angle of the feeding gear, and a drive mechanism for driving the feeding gear. The reference mechanism includes a reference gear mounted on the frame with a fixed angle, which can mesh with the feeding gear. The locking mechanism includes a connector that can be inserted into the inner hole of the feeding gear and a reset component for rotating and resetting the connector. The connector is inserted into the inner hole of the feeding gear when the reference gear and the feeding gear are meshing, and disengages from the inner hole of the feeding gear after the feeding gear passes the reference gear along its running direction.

[0008] By adopting the above technical solution, the drive mechanism causes the feeding gear to move forward, the reference gear with a fixed angle acts on the teeth of the feeding gear to make it rotate, and the feeding track limits the running path of the feeding gear. Under the combined action of the above three factors, the feeding gear rotates to a specified angle, which is the locking angle that the feeding gear needs to lock. At the same time as rotating to the locking angle, the connector can be inserted into the inner hole of the feeding gear to achieve initial locking. Afterwards, the feeding gear continues to move and is interfered with by the reference gear. During this process, the angle of the feeding gear rotates past the locking angle under the action of the reference gear. After the feeding gear runs and completely passes the reference gear, the connector is reset to the initial stage under the drive of the reset component, that is, the feeding gear rotates back to the locking angle. Finally, the feeding gear enters the dispensing mechanism at the locking angle for the next assembly step, thereby realizing the recalibration of the angle of the feeding gear and reducing the probability of tooth collision during subsequent meshing due to angle changes.

[0009] Optionally, the reset component includes a sliding frame slidably connected to the frame, a connecting shaft parallel to the axis of the feeding gear is fixedly mounted on the sliding frame, the plug can be coaxially sleeved on the top of the connecting shaft, and the plug can slide along the axial direction of the feeding gear to the top of the connecting shaft, and the plug can also slide along the axis of the connecting shaft to the connecting shaft; a sliding block is slidably mounted on the sliding frame along the axial direction of the feeding gear, and a plurality of locking springs are fixedly mounted between the plug and the sliding block, the axes of the locking springs are all parallel to the axis of the feeding gear, and the locking springs are evenly distributed along the axis of the connecting shaft; the locking mechanism also includes a linkage component for driving the sliding block to move upward, the sliding block being raised to the top when the reference gear and the feeding gear mesh.

[0010] By adopting the above technical solution, after the sliding block is raised so that the connector is inserted into the inner hole of the feeding gear, when the feeding gear is interfered with by the reference gear and rotates past the locking angle, the feeding gear rotates and drives the connector to rotate, thereby causing the locking spring to deform. When the feeding gear moves and completely passes the reference gear, the locking spring restores its deformation and drives the connector to rotate back to the initial position, thereby driving the feeding gear to rotate back to the locking angle, thus realizing the reset of the feeding gear angle.

[0011] Optionally, the linkage includes a linkage frame that slides along the sliding direction of the connector and is slidably connected to the frame, and a drive plate that slides radially along the reference gear and is slidably connected to the feeding track. The drive plate has a first guide surface at the edge facing the feeding gear, and the linkage frame has a second guide surface for forcing the linkage frame to move upward. The drive plate can abut against the second guide surface. At the same time, a lifting plate is also fixedly installed on the linkage frame. The lifting plate abuts against the lower surface of the sliding block, and the sliding block can slide along the running direction of the feeding gear and be connected to the lifting plate. The first guide surface ends when the reference gear and the feeding gear mesh.

[0012] By adopting the above technical solution, when the feeding gear and the reference gear mesh, the drive plate retracts into the feeding gear and, under the guidance of the second guide surface, drives the lifting plate to the top, thereby driving the sliding block to the top, realizing the initial locking of the connector and the feeding gear, and automatically locking the feeding gear after it runs to the designated position.

[0013] Optionally, the connector includes a base sleeved and slidably connected to the connecting shaft and a boss fixed to the top of the base. The boss is raised to its apex and inserted into the inner hole of the feeding gear when the reference gear and the feeding gear mesh. A plurality of hinge rods are rotatably arranged inside the boss. One end of each hinge rod is fixedly connected to a connecting line. The end of the connecting line away from the hinge rod passes through the base and is fixedly connected to an abutment block. The abutment block abuts against the bottom end of the base, and the end of the locking spring away from the sliding block is fixed to the abutment block. The end of the hinge rod away from the connecting line can pass through the outer wall of the dome and abut against the inner wall of the feeding gear.

[0014] By adopting the above technical solution, when the rotation angle of the feeding gear exceeds the locking angle, the feeding gear drives the boss and the base to rotate simultaneously, thereby pulling the locking spring to deform. The deformed locking spring can pull the connecting line and make the hinge rod rotate. One end of the rotated hinge rod protrudes and abuts against the inner wall of the feeding gear, thereby strengthening the locking degree of the boss and the inner hole of the feeding gear, thus making the reset of the feeding gear more stable.

[0015] Optionally, the frame is provided with a sliding groove for the sliding frame to slide. The sliding groove includes a smooth straight section and a curved section. The curved section is lower than the straight section, and the distance between the curved section and the straight section on the axis of the feeding gear is greater than the lifting distance of the boss. The connection position of the straight section and the curved section is located after the reference gear along the running direction of the feeding gear.

[0016] By adopting the above technical solution, after the feeding gear moves forward and completely passes the reference gear, the sliding frame moves to the intersection of the straight section and the curved section and falls along the sliding groove. At the same time, the boss is raised to the top when the reference gear and the feeding gear mesh, which means that the boss and the connecting shaft will not continue to move away from each other along their axial direction. Therefore, when the sliding frame falls, it will drive the connecting shaft to fall together, thereby driving the boss to fall together, causing the boss to disengage from the inner hole of the feeding gear, thus unlocking the feeding gear.

[0017] Optionally, a first return spring is fixedly connected between the drive plate and the feeding track, the axis of the first return spring being parallel to the sliding direction of the drive plate; a limit frame is slidably connected to the frame along the running direction of the feeding gear, the sliding frame being slidably connected to the limit frame along the axis of the feeding gear, and a second return spring is fixedly connected between the limit frame and the frame, the axis of the second return spring being parallel to the running direction of the feeding gear; the side wall of the drive plate away from the linear feeder is located after the connection position of the straight section and the curved section along the running direction of the feeding gear, and the side wall of the lifting plate away from the linear feeder is located after the drive plate along the running direction of the feeding gear.

[0018] By adopting the above technical solution, when the feeding gear is unlocked, the sliding frame falls first under the guidance of the curved section of the sliding groove. At this time, the lifting plate remains in an elevated state, so that when the boss falls, the locking spring will not fall with it, thereby reducing the probability that the hinge rod will protrude and abut against the inner hole of the feeding gear and fail to unlock. Until the feeding gear disengages from the drive plate, the drive plate pops out again under the drive of the first reset spring, and the linkage frame and the lifting plate fall down under the action of gravity to reset. At the same time, the limit frame drives the sliding frame to reset under the drive of the second reset spring, thereby realizing automatic reset.

[0019] Optionally, the reference mechanism includes a reference screw rotatably mounted on the frame, the axis of the reference screw being perpendicular to the running direction of the feeding gear; a slider passing through and threadedly connected to the reference screw, the slider slidingly connected to the frame along the axis of the reference screw; a reference shaft rotatably connected to the slider, the axis of the reference shaft being parallel to the axis of the feeding gear; a reference long key fixedly mounted on the circumferential sidewall of the reference shaft for the reference gear to pass through, the reference long key extending along the axis of the reference shaft; and a tightening bolt passing through and threadedly connected to the slider, the end of the tightening bolt being able to penetrate the slider and abut against the reference shaft.

[0020] By adopting the above technical solution, when the inner hole of the reference gear is inserted into the reference shaft, the reference long key can be inserted into the keyway of the reference gear, thereby defining the position between the reference gear and the reference shaft. The reference gear is selected as the gear used for subsequent assembly with the feeding gear on the gear reducer assembly line. When the reference gear rotates to a specified angle, it can be tightened with a tightening bolt to limit its rotation, so that the reference mechanism can adjust the position and angle of the reference gear according to the actual situation. When the reference gear and the feeding gear are accidentally jammed, the reference gear can also be removed using the reference screw for manual adjustment, facilitating maintenance.

[0021] Optionally, the reference mechanism further includes an extension frame fixed to the feeding track. The extension frame is provided with a calibration shaft with a fixed rotation angle. A calibration gear passes through and is provided on the calibration shaft. The calibration gear has the same specifications as the feeding gear. The axis of the calibration shaft coincides with the axis of the feeding gear when the reference gear and the feeding gear mesh. A calibration key is also fixedly provided on the circumferential sidewall of the calibration shaft for the calibration gear to pass through. The calibration key extends along the axis of the calibration shaft. The upper surface of the reference shaft is higher than the upper surface of the extension frame. The reference gear can slide vertically and connect to the reference shaft. At the same time, the reference gear can mesh with the calibration gear during the sliding process.

[0022] By adopting the above technical solution, the calibration gear can be used to calibrate the angle of the reference gear. That is, the angle of the calibration gear is the locking angle of the feeding gear. When the reference gear and the calibration gear mesh with each other, the angle of the feeding gear can be consistent with the angle of the calibration gear, which makes it easier for the staff to set the locking angle and makes the operation more convenient.

[0023] Optionally, the drive mechanism includes two rotating shafts respectively rotatably mounted at the ends of the frame. Two conveyor belts are simultaneously driven and connected to the rotating shafts. The two conveyor belts are parallel to each other and are located between two feeding tracks. The distance between the two conveyor belts is greater than the inner diameter of the feeding gear and less than the outer diameter of the feeding gear. A plurality of protrusions are uniformly provided on the surface of the conveyor belts, and the protrusions can abut against the feeding gear.

[0024] By adopting the above technical solution, two conveyor belts with a gap can drive the feeding gear to run, or allow the connector to pass through to lock the angle of the feeding gear.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. During the forward movement of the feeding gear, it is first gradually adjusted to the locking angle by the action of the reference gear. At the same time as it rotates to the locking angle, the connector is inserted to lock the angle. Then the feeding gear continues to move forward, and under the continuous interference of the reference gear, the angle of the feeding gear will rotate past the locking angle. After the feeding gear leaves the reference gear, it will rotate back to the locking angle under the action of the reset component. Finally, the connector unlocks from the feeding gear, allowing the feeding gear to enter the next process at the locking angle.

[0027] 2. The angle adjustment, angle locking, angle reset, and unlocking processes of the feeding gear are all performed automatically as the feeding gear runs, which is in line with the characteristics of automated production. Attached Figure Description

[0028] Figure 1 This is an overall diagram of an embodiment of this application.

[0029] Figure 2 This is a schematic diagram of the structure of the reference mechanism in the embodiments of this application.

[0030] Figure 3 This is a schematic diagram of the locking mechanism in an embodiment of this application.

[0031] Figure 4 This is a schematic diagram of the connector and reset component in an embodiment of this application.

[0032] Figure 5 This is a schematic diagram of the linkage component in an embodiment of this application.

[0033] Figure 6 This is a schematic diagram of the internal structure after removing the single-sided frame in an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Feeding track; 3. Drive mechanism; 301. Rotating shaft; 302. Drive motor; 303. Conveyor belt; 304. Feeding channel; 4. Reference mechanism; 401. Reference gear; 402. Reference screw; 403. Slider; 404. Reference shaft; 405. Reference key; 406. Connecting groove; 407. Tightening bolt; 408. Extension frame; 409. Calibration shaft; 410. Calibration key; 411. Locking bolt; 412. Calibration gear; 5. Locking mechanism; 6. Connector; 601. Base; 602. Boss; 603. Connecting column; 604. Dome; 7. Reset component; 701. Sliding frame; 702. Connecting shaft; 703. Sliding cavity; 704. Anti-detachment plate; 705. Groove; 706. Hinge rod; 707. Connecting line; 708. Abutment block; 709. Sliding block; 710. Locking spring; 711. Cylindrical shaft; 712. Sliding groove; 713. Straight section; 714. Bending section; 715. Long groove; 716. Limiting frame; 717. Waist hole; 718. Second return spring; 8. Linkage component; 801. Drive plate; 802. First guide surface; 803. First return spring; 804. Linkage frame; 805. Extending block; 806. Second guide surface; 807. Lifting plate; 9. Feeding gear; 10. Adjustment point; 11. Falling surface; 12. Return surface; 13. End point surface. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0036] This application discloses an automatic alignment device for a gear reducer, referring to... Figure 1 The assembly includes a frame 1, located between the linear feeder and the gear distribution mechanism on the gear reducer assembly line. The length of the frame 1 is parallel to the running direction of the feeding gear 9. The frame 1 is equipped with a drive mechanism 3 for pushing the feeding gear 9 along its length, a reference mechanism 4 for adjusting the angle of the feeding gear 9, and a locking mechanism 5 for locking the angle of the feeding gear 9. The angle of the feeding gear 9 after adjustment by the reference mechanism 4 is recorded as the locking angle. Two feeding tracks 2 are fixedly installed on the upper surface of the frame 1. The cross-section of the feeding track 2 is L-shaped and parallel to the length direction of the frame 1. The feeding gear 9 is located between the two feeding tracks 2 and can slide along the length direction of the frame 1 to connect to the inner side wall and inner top wall of the two feeding tracks 2. The two ends of the feeding track 2 along the length direction of the frame 1 are respectively connected to the linear feeder and the gear distribution mechanism of the gear reducer assembly line, so that the gear reducer is adjusted at the angle before assembly and then entered into the gear distribution mechanism for assembly, reducing the probability of gear collision during subsequent assembly.

[0037] Reference Figure 1 The drive mechanism 3 includes two rotating shafts 301 rotatably connected to the frame 1, with the axes of the rotating shafts 301 perpendicular to the length of the frame 1. A drive motor 302 is also fixedly mounted on the frame 1, and the output shaft of the drive motor 302 is coaxially and fixedly connected to one of the rotating shafts 301. Two conveyor belts 303 for transporting the feeding gear 9 are also simultaneously connected to the rotating shaft 301. Each conveyor belt 303 may also have several protrusions (not shown in the figure) evenly fixed to its surface. These protrusions can abut against the sidewall of the feeding gear 9, thereby driving the feeding gear 9 to move simultaneously with the conveyor belt 303. The two conveyor belts 303 are parallel to each other, and the distance between the two conveyor belts 303 is greater than the inner diameter of the feeding gear 9 but smaller than the outer diameter of the feeding gear 9, so that the conveyor belts 303 do not obstruct the inner diameter of the feeding gear 9. Both conveyor belts 303 are located between two feeding tracks 2, forming a feeding channel 304 for the feeding gear 9 to pass through.

[0038] Reference Figure 1 and Figure 2 The reference mechanism 4 includes a reference gear 401 and an adjustment part for adjusting the position of the reference gear 401. The reference gear 401 is selected to be a gear used for assembly with the feeding gear 9 on the gear reducer assembly line. The axis of the reference gear 401 is parallel to the axis of the feeding gear 9. The adjustment part includes a reference screw 402 rotatably mounted on the frame 1. The axis of the reference screw 402 is perpendicular to the length direction of the frame 1. A slider 403 passes through and is threadedly connected to the reference screw 402. The slider 403 is slidably connected to the frame 1 along the axis of the reference screw 402. A reference shaft 404 is rotatably connected to the slider 403. The axis of the reference shaft 404 is parallel to the axis of the feeding gear 9. A reference key 405 is fixedly mounted on the circumferential side wall of the reference shaft 404. The extension direction of the reference key 405 is parallel to the axis of the reference shaft 404.

[0039] Reference Figure 1 and Figure 2The feeding track 2, near the reference shaft 404, has a through-slot 406. A reference gear 401 can be fitted onto the reference shaft 404, and a reference key 405 can be inserted into the keyway of the reference gear 401. The reference gear 401 can slide along its axial direction and connect to the reference shaft 404. A tightening bolt 407 passes through and is threaded onto the slider 403. The axis of the tightening bolt 407 is perpendicular to the axis of the reference shaft 404. The end of the tightening bolt 407 inserted into the slider 403 abuts against the reference shaft 404, thereby fixing the angle of the reference gear 401. After the reference gear 401 is fixed, some of its teeth can enter the feeding channel 304 through the through-slot 406. When the feeding gear 9 moves to the connecting groove 406 under the drive of the conveyor belt 303, the reference gear 401 after fixing the angle can force the feeding gear 9 to rotate until the line connecting the axis of the feeding gear 9 and the axis of the reference gear 401 is perpendicular to the length direction of the frame 1, the feeding gear 9 and the reference gear 401 mesh with each other.

[0040] For ease of subsequent description, the meshing position of the feeding gear 9 and the reference gear 401 is marked as adjustment point 10. The angle of the feeding gear 9 at adjustment point 10 is its locking angle.

[0041] Reference Figure 1 and Figure 2 The reference mechanism 4 also includes an extension frame 408 fixed to the feeding track 2 or the frame 1. The extension frame 408 is higher than the upper surface of the feeding track 2, and a calibration shaft 409 is rotatably connected to the extension frame 408. The axis of the calibration shaft 409 coincides with the axis of the feeding gear 9 at the adjustment point 10. A calibration key 410 is fixedly provided on the circumferential side wall of the calibration shaft 409, and the calibration key 410 extends along the axial direction of the calibration shaft 409. A calibration gear 412 is sleeved on the calibration shaft 409. The calibration gear 412 has the same specifications as the feeding gear 9, and the calibration key 410 can be inserted into the keyway of the calibration gear 412. A locking bolt 411 also passes through and is threaded onto the extension frame 408. The axis of the locking bolt 411 is perpendicular to the axis of the calibration shaft 409, and the end of the locking bolt 411 that passes through the extension frame 408 can abut against the calibration shaft 409 to fix the angle of the calibration gear 412. The angle of the fixed calibration gear 412 is the locking angle of the feeding gear 9. The upper surface of the reference shaft 404 is higher than the upper surface of the extension frame 408. When the reference gear 401 slides along the axial direction of the reference shaft 404 and is connected to the reference shaft 404, the reference gear 401 meshes with the calibration gear 412. The reference gear 401 can slide along the axial direction of the reference shaft 404 and be connected to the inner wall of the tooth groove of the calibration gear 412, thereby realizing the calibration of the angle of the reference gear 401.

[0042] Reference Figure 3 and Figure 4The locking mechanism 5 includes a connector 6 that can be inserted into the inner hole of the feeding gear 9, a linkage 8 for driving the connector 6 to move upward, and a reset 7 for resetting the connector 6 after rotation. The connector 6 includes a base 601 and a boss 602 fixed to the upper surface of the base 601. The boss 602 is a cylindrical connecting post 603, and the upper surface of the connecting post 603 is a dome 604. The axis of the connecting post 603 is parallel to the axis of the feeding gear 9. When the connector 6 moves upward, the boss 602 can pass through the gap between the two conveyor belts 303 and insert into the inner hole of the feeding gear 9. Both the circumferential sidewall of the connecting post 603 and the outer wall of the dome 604 are provided with friction patterns. When the boss 602 is inserted into the inner hole of the feeding gear 9 and abuts against the inner wall of the feeding gear 9, initial locking is achieved.

[0043] Reference Figure 3 and Figure 4 The reset component 7 includes a sliding frame 701 slidably connected to the frame 1. A connecting shaft 702 is integrally formed on the sliding frame 701, and the axis of the connecting shaft 702 is parallel to the axis of the connecting column 603. A sliding cavity 703 is provided inside the base 601. The upper end of the connecting shaft 702 can pass through the bottom end of the base 601 and enter the sliding cavity 703. The end of the connecting shaft 702 that enters the bottom end of the base 601 is coaxially fixedly connected to an anti-detachment plate 704. The cross-sectional area of ​​the anti-detachment plate 704 is larger than that of the connecting shaft 702. The anti-detachment plate 704 can be slidably connected to the inner wall of the sliding cavity 703, so that the connector 6 can both rotate along the axis of the connecting shaft 702 and slide back and forth along the axis of the connecting shaft 702. When the connector 6 is inserted into the inner hole of the feeding gear 9 and initially locked, the anti-detachment plate 704 abuts against the bottom inner wall of the sliding cavity 703.

[0044] Reference Figure 3 and Figure 4The outer wall of the boss 602 is also provided with several grooves 705 evenly distributed along the axis of the connecting column 603. A hinge rod 706 is rotatably installed in each groove 705. A connecting line 707 is fixedly installed at one end of each hinge rod 706. The connecting line 707 can pass through the boss 602 and the base 601 in sequence and is fixedly connected to an abutment block 708. The upper surface of the abutment block 708 can abut against the bottom end of the base 601. A sliding block 709 is also fitted around the connecting shaft 702. The sliding block 709 can slide along the axial direction of the connecting shaft 702 and is connected to the outer wall of the connecting shaft 702. Several locking springs 710 are provided between the sliding block 709 and the base 601. The upper end of the locking spring 710 is fixedly connected to the lower surface of the abutment block 708, and the lower end of the locking spring 710 is fixed to the upper surface of the sliding block 709. The extension and retraction directions of the locking springs 710 are all parallel to the length direction of the connecting shaft 702, and the several locking springs 710 are evenly distributed along the axial direction of the connecting shaft 702. When the sliding block 709 moves upward, it can sequentially drive the locking springs 710 and the base 601 to move upward, causing the boss 602 to insert into the inner hole of the feeding gear 9 to complete the initial locking. If the loading gear 9 rotates after initial locking, the locking spring 710 can pull the connecting line 707, which in turn pulls the hinge rod 706 to rotate. The end of the hinge rod 706 away from the connecting line 707 can protrude from the outer wall of the boss 602 and abut against the inner wall of the loading gear 9 to strengthen the locking, thereby limiting the relative position between the loading gear 9 and the boss 602.

[0045] Reference Figure 2 , Figure 3 and Figure 5 The linkage 8 includes a drive plate 801 slidably connected to the feeding track 2 and a linkage frame 804 slidably connected to the frame 1. The sliding direction of the drive plate 801 is perpendicular to the length direction of the feeding track 2, and one end of the drive plate 801 can protrude from the inner wall of the feeding track 2. A first guide surface 802 is also provided on the drive plate 801 facing the edge of the feeding gear 9. The end point of the first guide surface 802 is located on the same plane as the axis of the reference gear 401. When the feeding gear 9 abuts against the first guide surface 802, it can force the drive plate 801 to retract into the feeding track 2 until the feeding gear 9 moves to the end point of the first guide surface 802. At this time, the feeding gear 9 just causes the drive plate 801 to retract completely into the feeding track 2, and the feeding gear 9 is exactly located at the adjustment point 10. A first reset spring 803 is also fixedly installed on the drive plate 801. The extension axis of the first reset spring 803 is parallel to the sliding direction of the drive plate 801, and the end of the first reset spring 803 away from the drive plate 801 is fixedly connected to the inner wall of the feeding track 2.

[0046] Reference Figure 3 and Figure 5The linkage frame 804 is slidably connected to the inside of the frame 1 along the axis of the feeding gear 9, and an extension block 805 is fixed to the upper part of the linkage frame 804. A second guide surface 806 is provided on the lower edge of the extension block 805 near the drive plate 801, and the end of the drive plate 801 away from the first guide surface 802 can abut against the second guide surface 806. A lifting plate 807 is also fixedly connected to the lower end of the linkage frame 804, and the lifting plate 807 can slide along the axial direction of the feeding gear 9 and is connected to the inner wall of the frame 1. A sliding block 709 is located on the upper surface of the lifting plate 807, and the sliding block 709 can slide along the length direction of the frame 1 and is connected to the upper surface of the lifting plate 807. When the end of the drive plate 801 away from the first guide surface 802 approaches the linkage frame 804, it can drive the linkage frame 804 to move upward. At this time, the lifting plate 807 can move upward with the linkage frame 804, thereby driving the sliding block 709 to move upward.

[0047] Reference Figure 3 and Figure 6 To ensure that the locking mechanism 5 returns to its initial state after one locking operation, the sliding frame 701 is rectangular. Cylindrical shafts 711 are provided at both ends of the sliding frame 701, and a sliding groove 712 for inserting the cylindrical shafts 711 is provided on the inner wall of each frame 1. The sliding groove 712 includes a straight section 713 and a curved section 714. The straight section 713 extends parallel to the length direction of the frame 1, and the curved section 714 is lower than the straight section 713. The transition between the straight section 713 and the curved section 714 is smooth.

[0048] Reference Figure 3 and Figure 6 The inner wall of the frame 1 is provided with two long slots 715. The long slots 715 extend parallel to the length of the frame 1, and the two long slots 715 of the same frame 1 are located on the upper and lower sides of the sliding slot 712, respectively. Limiting frames 716 are slidably connected to the two long slots 715. The limiting frames 716 can slide along the length of the frame 1 and are connected to the long slots 715. The limiting frames 716 are provided with waist holes 717, which extend along the axis of the feeding gear 9. The sliding frame 701 can pass through the waist holes 717, and the two opposite side walls of the sliding frame 701 can slide along the axis of the feeding gear 9 and be connected to the inner wall of the waist holes 717.

[0049] Reference Figure 3 , Figure 4 and Figure 6Each limiting frame 716 is fixedly equipped with a second return spring 718. The extension and retraction direction of the second return spring 718 is parallel to the length direction of the frame 1, and the end of the second return spring 718 away from the limiting frame 716 is fixedly connected to the inner wall of the long groove 715. When the cylindrical shaft 711 moves from the straight section 713 to the curved section 714, it will fall along the axis of the feeding gear 9, and the falling distance of the cylindrical shaft 711 is greater than the lifting distance of the boss 602. That is, the difference in the drop distance between the straight section 713 and the curved section 714 in the axial direction of the feeding gear 9 is greater than the lifting distance of the boss 602, so that the connector 6 disengages from the inner hole of the feeding gear 9 after the feeding gear 9 passes the reference gear 401 along its running direction.

[0050] Reference Figure 3 and Figure 6 The vertical plane where the initial position connecting the straight section 713 and the curved section 714 of the sliding groove 712 is located is denoted as the return surface 11. The plane containing the side wall of the drive plate 801, which runs in the same direction as the feeding gear 9, is denoted as the reset surface 12. The plane containing the side wall of the lifting plate 807, which runs in the same direction as the feeding gear 9, is denoted as the endpoint surface 13. The return surface 11 is located after the adjustment point 10 along the running direction of the feeding gear 9, that is, the connection position of the straight section 713 and the curved section 714 is located after the reference gear 401 along the running direction of the feeding gear 9. The reset surface 12 is located after the return surface 11 along the running direction of the feeding gear 9, that is, the side wall of the drive plate 801 away from the straight feeder is located after the connection position of the straight section 713 and the curved section 714 along the running direction of the feeding gear 9. The endpoint surface 13 is located after the reset surface 12 along the running direction of the feeding gear 9, that is, the side wall of the lifting plate 807 away from the straight feeder is located after the drive plate 801 along the running direction of the feeding gear 9.

[0051] This application embodiment describes an automatic alignment device for a gear reducer that performs angle adjustment on the feeding gear 9 through three processes:

[0052] I. Angle Adjustment Stage of Feeding Gear 9: After entering the feeding channel 304, the feeding gear 9 moves forward under the drive of the conveyor belt 303. During operation, the teeth of the feeding gear 9 facing the reference gear 401 are simultaneously interfered with by the reference gear 401, and the feeding gear 9 is also limited and guided by the feeding track 2. Under multiple actions, the feeding gear 9 rotates. Until the feeding gear 9 moves to the adjustment point 10, the angle of the feeding gear 9 is adjusted to the locked angle. At the same time, the teeth of the feeding gear 9 away from the reference gear 401 abut against the first guide surface 802 during operation, and in the... Guided by the first guide surface 802, the drive plate 801 is pressed into the feeding track 2. The drive plate 801 pressed into the feeding track 2 can drive the linkage frame 804 and the lifting plate 807 to rise together under the guidance of the second guide surface 806. After rising, the lifting plate 807 can drive the sliding block 709 to move upward, which in turn drives the locking spring 710 and the base 601 to move upward and causes the boss 602 to be inserted into the inner hole of the feeding gear 9. When the feeding gear 9 runs to the adjustment point 10, the drive plate 801 is completely pressed into the feeding track 2, and the boss 602 and the feeding gear 9 achieve initial locking through friction.

[0053] II. Angle Locking Stage of Feeding Gear 9: When feeding gear 9 continues to move forward from self-adjustment point 10, it will be interfered with by reference gear 401 and continue to rotate, with the rotation angle exceeding the locking angle. At this time, when feeding gear 9 rotates, it will drive boss 602 and base 601 to rotate together. After rotation, locking spring 710 can tighten connecting line 707 and cause one end of hinge rod 706 to protrude from the surface of boss 602 to abut against the inner hole of feeding gear 9, thereby strengthening the locking between feeding gear 9 and boss 602. Until feeding gear 9 separates from reference gear 401, feeding gear 9 can rotate back to the locking angle under the reset force of locking spring 710, thereby realizing the angle locking of feeding gear 9.

[0054] III. Unlocking stage of the feeding gear 9: When the feeding gear 9 continues to move forward to the falling surface 11, the sliding frame 701 moves downward under the guidance of the sliding groove 712, driving the connecting shaft 702 and the anti-detachment plate 704 to move downward together. The anti-detachment plate 704 can pull the base 601 and the boss 602 to move downward together, thereby causing the boss 602 to disengage from the inner hole of the feeding gear 9 and release the lock of the two. At this time, the lifting plate 807 remains in the original position, the base 601 moves downward, and the locking spring 710 is compressed, thereby increasing the friction between the sliding block 709 and the lifting plate 807 and maintaining a stable relative position.

[0055] IV. Reset Stage: After unlocking, the loading gear 9 continues to move forward under the drive of the protrusions (not shown in the figure) on the surface of the conveyor belt 303 until it passes the reset surface 12. The loading gear 9 no longer presses against the drive plate 801. The drive plate 801 pops out again under the action of the first reset spring 803, causing the lifting plate 807 to fall back. At this time, the friction between the lifting plate 807 and the sliding block 709 decreases. The sliding seat returns to its initial position under the action of the second reset spring 718 and waits for the next workpiece to make a new round of angle adjustment.

[0056] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic alignment device for a gear reducer, characterized in that: The system includes a frame (1) and a feeding track (2) mounted on the frame (1). A feeding gear (9) is slidably connected to the feeding track (2) along its running direction. The two ends of the feeding track (2) along the running direction of the feeding gear (9) are respectively connected to a linear feeder and a gear distribution mechanism. The frame (1) is also provided with a reference mechanism (4) for adjusting the angle of the feeding gear (9), a locking mechanism (5) for locking the angle of the feeding gear (9), and a drive mechanism (3) for driving the feeding gear (9). The reference mechanism (4) includes a reference gear (401) mounted on the frame (1) and with a fixed angle. The reference gear (401) can mesh with the feeding gear (9). The locking mechanism (5) includes a connector (6) that can be inserted into the inner hole of the feeding gear (9) and a reset member (7) for resetting the connector (6) after rotation. The connector (6) is inserted into the inner hole of the feeding gear (9) when the reference gear (401) and the feeding gear (9) are engaged, and the connector (6) disengages from the inner hole of the feeding gear (9) after the feeding gear (9) passes the reference gear (401) along its running direction. The reset member (7) includes a sliding frame (701) that is slidably connected to the frame (1). A connecting shaft (702) parallel to the axis of the feeding gear (9) is fixedly provided on the sliding frame (701). The connector (6) can be coaxially sleeved on the connecting shaft. The top of the connecting shaft (702) is connected to the top of the connecting shaft (702) and the plug (6) can slide along the axial direction of the feeding gear (9). At the same time, the plug (6) can also slide along the axis of the connecting shaft (702) and be connected to the connecting shaft (702). A sliding block (709) is provided on the sliding frame (701) along the axial direction of the feeding gear (9). A plurality of locking springs (710) are fixedly provided between the plug (6) and the sliding block (709). The axes of the locking springs (710) are all parallel to the axis of the feeding gear (9), and the locking springs (710) are evenly distributed along the axis of the connecting shaft (702). The locking mechanism (5) also includes a mechanism for driving the sliding. The linkage (8) that moves the block (709) upward, the sliding block (709) is raised to the top when the reference gear (401) and the feeding gear (9) mesh, the linkage (8) includes a linkage frame (804) that slides along the sliding direction of the plug (6) and is connected to the frame (1) and a drive plate (801) that slides along the radial direction of the reference gear (401) and is connected to the feeding track (2), the drive plate (801) is provided with a first guide surface (802) facing the edge of the feeding gear (9), and the linkage frame (804) is provided with a second guide surface (806) for forcing the linkage frame (804) to move upward, the drive plate (801) can abut against the second guide surface (806);Meanwhile, a lifting plate (807) is also fixedly installed on the linkage frame (804). The lifting plate (807) abuts against the lower surface of the sliding block (709), and the sliding block (709) can slide and connect to the lifting plate (807) along the running direction of the feeding gear (9). The first guide surface (802) ends when the reference gear (401) and the feeding gear (9) mesh.

2. The automatic alignment device for a gear reducer according to claim 1, characterized in that: The connector (6) includes a base (601) sleeved and slidably connected to the connecting shaft (702) and a boss (602) fixed to the top of the base (601). The boss (602) is raised to its apex and inserted into the inner hole of the feeding gear (9) when the reference gear (401) and the feeding gear (9) mesh. A plurality of hinge rods (706) are rotatably arranged inside the boss (602). One end of each hinge rod (706) is fixedly connected to a connecting line (707). The end of the connecting line (707) away from the hinge rod (706) passes through the base (601) and is fixedly connected to the abutment block (708). The abutment block (708) abuts against the bottom end of the base (601), and the end of the locking spring (710) away from the sliding block (709) is fixed to the abutment block (708). The end of the hinge rod (706) away from the connecting line (707) can pass through the outer wall of the dome (604) and abut against the inner wall of the feeding gear (9).

3. The automatic alignment device for a gear reducer according to claim 2, characterized in that: The frame (1) is provided with a sliding groove (712) for sliding the sliding frame (701). The sliding groove (712) includes a smooth straight section (713) and a curved section (714). The curved section (714) is lower than the straight section (713). The distance between the curved section (714) and the straight section (713) on the axis of the feeding gear (9) is greater than the lifting distance of the boss (602). The connection position of the straight section (713) and the curved section (714) is located after the reference gear (401) along the running direction of the feeding gear (9).

4. The automatic alignment device for a gear reducer according to claim 3, characterized in that: A first return spring (803) is fixedly connected between the drive plate (801) and the feeding track (2), and the axis of the first return spring (803) is parallel to the sliding direction of the drive plate (801). A limit frame (716) is slidably connected to the frame (1) along the running direction of the feeding gear (9). The sliding frame (701) can be slidably connected to the limit frame (716) along the axis of the feeding gear (9). A second return spring (718) is fixedly connected between the limit frame (716) and the frame (1), and the axis of the second return spring (718) is parallel to the running direction of the feeding gear (9). The drive plate (801) is located behind the connection position of the straight section (713) and the curved section (714) along the running direction of the feeding gear (9) on the side wall away from the straight feeder. The lifting plate (807) is located behind the drive plate (801) along the running direction of the feeding gear (9) on the side wall away from the straight feeder.

5. The automatic alignment device for a gear reducer according to claim 4, characterized in that: The reference mechanism (4) includes a reference screw (402) rotatably mounted on the frame (1), the axis of the reference screw (402) being perpendicular to the running direction of the feeding gear (9), a slider (403) passing through and threadedly connected to the reference screw (402), the slider (403) slidingly connected to the frame (1) along the axis of the reference screw (402); a reference shaft (404) rotatably connected to the slider (403), the axis of the reference shaft (404) being parallel to the axis of the feeding gear (9), a reference long key (405) fixedly mounted on the circumferential sidewall of the reference shaft (404) for the reference gear (401) to pass through, the reference long key (405) extending along the axis of the reference shaft (404); a tightening bolt (407) passing through and threadedly connected to the slider (403), the end of the tightening bolt (407) being able to penetrate the slider (403) and abut against the reference shaft (404).

6. The automatic alignment device for a gear reducer according to claim 5, characterized in that: The reference mechanism (4) further includes an extension frame (408) fixed to the feeding track (2). The extension frame (408) is provided with a calibration shaft (409) with a fixed rotation angle. A calibration gear (412) passes through and is provided on the calibration shaft (409). The calibration gear (412) has the same specifications as the feeding gear (9). When the reference gear (401) and the feeding gear (9) are meshed, the axis of the calibration shaft (409) coincides with the axis of the feeding gear (9). The circumferential sidewall of the calibration shaft (409) is also fixedly provided with a calibration key (410) for the calibration gear (412) to pass through. The calibration key (410) extends along the axis of the calibration shaft (409). The upper surface of the reference shaft (404) is higher than the upper surface of the extension frame (408). The reference gear (401) can slide and connect to the reference shaft (404) in the vertical direction. At the same time, the reference gear (401) can mesh with the calibration gear (412) during the sliding process.

7. The automatic alignment device for a gear reducer according to claim 6, characterized in that: The drive mechanism (3) includes two rotating shafts (301) respectively rotatably disposed at the ends of the frame (1). Two conveyor belts (303) are simultaneously connected to the rotating shafts (301). The two conveyor belts (303) are parallel to each other and are located between two feeding tracks (2). The distance between the two conveyor belts (303) is greater than the inner diameter of the feeding gear (9) and smaller than the outer diameter of the feeding gear (9). A number of protrusions are uniformly disposed on the surface of the conveyor belts (303), and the protrusions can abut against the feeding gear (9).

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